Last year I built a SCCM 2012 server, I got the basics done then thought 'I'll go back to it when I get a moment'...of course that moment never came round!

So this week I want to start from scratch, get SCCM in place then create a image from scratch etc.

Anyway can I scrap my existing SCCM 2012 server and build a new one without any impact? I remember making several changes to the AD etc when installing it before! Also can I build it on a Windows 2012 R2 server for use in a Server 2008 R2 / Windows 7 domain?